hdate is a simple package to generate Hijra dates from AD dates and to print a Hijra calender for a given AD month or year (past, present and future). The Hijra (lunar) calender is used by Muslims worldwide.
The Debian packages and source code are available at:
http://www.crosswinds.net/~yusuf/hdates.html
Please note this site is not apt-gettable, and I am not a Debian developer. I am seeking sponsorship. I would also like to take on the orphaned package sysutils.